Proline® gear head box assembly for select Stihl pole pruners. Please compare your original gear head, drive shaft shape, and tube diameter with our pictures before ordering to verify proper fitment. Actual pictures shown.
IMPORTANT FITMENT
This gear head is designed for applications using a square inner drive shaft and approximately 25.4mm (1") outer tube. Some models used different shaft and gear head configurations. Verify your original shaft shape and tube diameter before ordering.
Includes:
- Gear head assembly (1pc)
Specs:
- Drive shaft type: Square
- Outer tube diameter: Approximately 25.4mm (1")
- Chain pitch: 3/8" Picco
- Sprocket: 6-tooth
IMPORTANT CROSS REFERENCE
This gear head is commonly cross-referenced under 4138 205 0008 / 41382050008 for the complete square-shaft gear head assembly. This is an established aftermarket cross-reference number and is provided to help identify the correct replacement.